Improved accuracy in computer-assisted unicondylar knee arthroplasty: a meta-analysis

Weber, Patrick; Crispin, Alexander; Schmidutz, Florian; Utzschneider, Sandra; Pietschmann, Matthias F.; Jansson, Volkmar; Müller, Peter E.

doi:10.1007/s00167-013-2370-x

Cited by 61 publications

(54 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The manufacturers of UKAs recommend positive tibial slopes with values between 10°positive slope and 5°negative slope (Weber et al, 2013). In a pilot study the role of the tibial slope on wear in a UKA was evaluated and a proof of principle was performed.…”

Section: Introductionmentioning

confidence: 99%

Increase of tibial slope reduces backside wear in medial mobile bearing unicompartmental knee arthroplasty

Weber

Schröder

Schmidutz

et al. 2013

Clinical Biomechanics

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Increase of tibial slope reduces backside wear in medial mobile bearing unicompartmental knee arthroplasty

Weber

Schröder

Schmidutz

et al. 2013

Clinical Biomechanics

Self Cite

View full text Add to dashboard Cite

“…The short- to mid-term results for computer-navigated versus conventional alignment techniques in TKA and UKA show no statistically significant clinical differences [13,15,17]. However, a limitation of the original UKA studies was the use of a software application intended for TKA navigation.…”

Section: Discussionmentioning

confidence: 99%

“…In 2013, Weber et al, in a meta-analysis, compared 258 UKA prostheses implanted using a navigated technique and 295 using a conventional one in ten eligible studies [17]. Radiological alignment of both femoral and tibial components, limb mechanical axis and surgical time were assessed.…”

Section: Discussionmentioning

confidence: 99%

“…More obvious clinical advantages may be expected in a more demanding surgery, such as the UKA, where traditional techniques can lead to poor alignment accuracy [13][14][15][16]. In fact, results of a recent meta-analysis suggest that despite longer surgical time, the use of a navigation system in UKA results in more accurate component positioning compared with the conventional implantation method [17]. However, the same study showed no clear clinical advantages of this improvement in component alignment [17].…”

Section: Introductionmentioning

confidence: 99%

“…In fact, results of a recent meta-analysis suggest that despite longer surgical time, the use of a navigation system in UKA results in more accurate component positioning compared with the conventional implantation method [17]. However, the same study showed no clear clinical advantages of this improvement in component alignment [17]. The literature contains only a few studies that assess any further advantage from using computer navigation with a specifically UKA-dedicated software system in comparison with a conventional surgical technique for medial UKA [13,18].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Computer-assisted unicompartmental knee arthroplasty using dedicated software versus a conventional technique

Manzotti

Cerveri

Pullen

et al. 2013

International Orthopaedics (SICOT)

View full text Add to dashboard Cite

Purpose The aim of this study was to retrospectively compare the results of two matched-paired groups of patients who had undergone a medial unicompartmental knee arthroplasty (UKA) performed using either a conventional or a nonimage-guided navigation technique specifically designed for unicompartmental prosthesis implantation. Methods Thirty-one patients with isolated medialcompartment knee arthritis who underwent an isolated navigated UKA were included in the study (group A) and matched with patients who had undergone a conventional medial UKA (group B). The same inclusion criteria were used for both groups. At a minimum of six months, all patients were clinically assessed using the Knee Society Score (KSS) and the Western Ontario and McMaster Osteoarthritis Index (WOMAC) index. Radiographically, the frontal-femoral-component angle, the frontal-tibial-component angle, the hip-knee-ankle angle and the sagittal orientation of components (slopes) were evaluated. Complications related to the implantation technique, length of hospital stay and surgical time were compared. Results At the latest follow-up, no statistically significant differences were seen in the KSS, function scores and WOMAC index between groups. Patients in group B had a statistically significant shorter mean surgical time. Tibial coronal and sagittal alignments were statistically better in the navigated group, with five cases of outliers in the conventional alignment technique group. Postoperative mechanical axis was statistically better aligned in the navigated group, with two cases of overcorrection from varus to valgus in group B. No differences in length of hospital stay or complications related to implantation technique were seen between groups. Conclusion This study shows that a specifically designed UKA-dedicated navigation system results in better implant alignment in UKA surgery. Whether this improved alignment results in better clinical results in the long term has yet to be proven.

show abstract

What is the evidence for clinical use of advanced technology in unicompartmental knee arthroplasty?

Mittal

Meshram

Kim³

2021

Robotics Computer Surgery

View full text Add to dashboard Cite

Background: With an aim of improving prosthesis survivorship of unicompartmental knee arthroplasty (UKA), use of computer-assisted technologies (CATs) such as robotics, has been on the rise to reduce intraoperative errors in surgical technique.In light of recent influx of CATs in the UKA, a review of these innovations will help providers to understand their clinical utility.Method: A systematic literature search was performed following Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines.Results: Among 19 studies comparing robot-assisted UKA with conventional UKA, only 32% were randomized control trials, 47% reported minimum mean follow-up of 2 years, and 21% evaluated prosthesis survival. Similar results were obtained for navigation-assisted UKA and UKA performed with patient-specific instrumentation. Conclusion:While CATs seem to reduce the surgical errors in UKA, the evidence on the efficacy of any of the studied CATs to improve survivorship remains limited and there are issues related to cost-effectiveness, learning curve, and increase in operating time.

show abstract

Improved accuracy in computer-assisted unicondylar knee arthroplasty: a meta-analysis

Cited by 61 publications

References 38 publications

Increase of tibial slope reduces backside wear in medial mobile bearing unicompartmental knee arthroplasty

Increase of tibial slope reduces backside wear in medial mobile bearing unicompartmental knee arthroplasty

Computer-assisted unicompartmental knee arthroplasty using dedicated software versus a conventional technique

What is the evidence for clinical use of advanced technology in unicompartmental knee arthroplasty?

Contact Info

Product

Resources

About